CN103261853B - Cordless liquid system for measuring quantity - Google Patents
Cordless liquid system for measuring quantity Download PDFInfo
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- CN103261853B CN103261853B CN201180060669.4A CN201180060669A CN103261853B CN 103261853 B CN103261853 B CN 103261853B CN 201180060669 A CN201180060669 A CN 201180060669A CN 103261853 B CN103261853 B CN 103261853B
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- electromagnetic wave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/80—Arrangements for signal processing
- G01F23/806—Particular electronic circuits for handling non-digital processing equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Technology described herein is for the amount of liquid in wireless measurement casing.According to various aspects, incident electromagnetic wave (132) is launched in conductive chassis (110).One or more resilience electromagnetic wave (142) corresponding to described incident electromagnetic wave (132) is received.Use described resilience electromagnetic wave (142), measure the transport function of described resilience electromagnetic wave (142) and calculate the amount being stored in liquid in casing according to measured transport function.
Description
Background technology
In typical aircraft, the multiple wired capacitance probe immersed in fuel tank is used to measure the amount of the fuel be stored in the fuel tank of aircraft.Each capacitance probe is coupled to a wire, and this wire extended from the top of described detector before exiting fuel tank by dividing plate, and some distances of advancing in described fuel tank.Conductor part in described fuel tank is emphasis, because it may be provided for the access road of lightning stream.
Flowing through to reduce lightning the risk that the wire being coupled to capacitance probe enters fuel tank, employing the relevant circuit of various safety and parts.But the electric current that these safety are relevant and parts add the weight of aircraft, this conflicts mutually with the permanent target in the aerospace industry reducing aircraft weight.In addition, the extra cost relevant with the installation of these parts, maintenance and inspection is had.
Content disclosed herein is just about these and other considerations.
Summary of the invention
This document describes the technology for the amount of liquid in wireless measurement casing.By utilizing the technology and concept presented herein, use electromagnetic wave can be included in the amount of the liquid in casing by wireless measurement.Use electromagnetic wave that described technology wireless measurement can be utilized to be stored in the amount of the fuel in the fuel tank of aircraft.By this way, extend in described fuel tank without wire, thus eliminate lightning and flow to risk into fuel tank.Consequently, whole aircraft safety can improve.
According to various aspects, a kind of method for measuring amount of liquid is disclosed herein.Incident electromagnetic wave is launched in conductive chassis.Have received the resilience electromagnetic wave that one or more corresponds to described incident electromagnetic wave.Measure and correspond to the electromagnetic transport function of described resilience, and calculate the amount of the liquid be stored in casing according to measured transport function.In certain embodiments, described transport function and can launch incident electromagnetic wave and the time delay received between the reflection electromagnetic wave corresponding to described incident electromagnetic wave is interrelated.In addition, described transport function can be specific to geometric configuration.This means, may change according to the degree of depth of liquid and air/liquid border and the distance between described transmitter and receiver respectively corresponding to the electromagnetic transport function of described resilience.
According to further aspect, cordless liquid system for measuring quantity comprises the conductive chassis being configured storage of liquids.Transmitter launches incident electromagnetic wave in described conductive chassis, and receiver receives the resilience electromagnetic wave corresponding to described incident electromagnetic wave.Transport function module is measured and is corresponded to the electromagnetic transport function of described resilience, and the transport function measured by the utilization of amount of liquid computing module calculates amount of liquid.According to each embodiment, there is by mating measured transport function and one group the known transport function of corresponding amount of liquid, calculating described amount of liquid.Described one group of known transport function can be determined in a calibration process.
According to further aspect, the system for measuring amount of liquid comprises the conductive chassis being configured storage of liquids.Described conductive chassis has the outside surface and inside surface that are separated by conductive barrier (barrier).Outer inductive coil is positioned on described outside surface, and receives the electric power/power from amount of liquid Mersure Controler.Internal induction line is inductively located with the mode of separating by described conductive barrier with described outer inductive coil and inner inductive coil.Electric power and data-signal from described outer induction coil transmissions, by described conductive barrier to described inner inductive coil.Described inner inductive coil is coupled to wireless hub, and it wirelessly provides electric power and data-signal to amount of liquid measurement components, and this amount of liquid measurement components is configured the amount of liquid determining the liquid be stored in described conductive chassis.
It should be understood that when not deviating from spirit of the present disclosure, above-mentioned theme also can be embodied in other embodiments various.By reading the following detailed description of and checking relevant drawings, these and other features various will be apparent.
Content of the present invention is provided to introduce the selection of the concept further described in detailed description below in simplified form.Content of the present invention is not intended to point out the main of theme required for protection or essential characteristic, is also not intended to use content of the present invention to limit the scope of theme required for protection.In addition, theme required for protection is not limited to solve the embodiment of any or all shortcoming pointed in any portion of the present disclosure.
Accompanying drawing explanation
Fig. 1 is according to embodiments more as herein described, and the schematic diagram of a kind of embodiment of the amount of liquid in wireless measurement casing is shown;
Fig. 2 is according to embodiments more as herein described, and the schematic diagram of another embodiment of the amount of liquid in wireless measurement casing is shown;
Fig. 3 is according to embodiments more as herein described, and the schematic diagram of wireless transmit electric power to a kind of embodiment in casing is shown;
Fig. 4 is according to embodiments more as herein described, and the skeleton view of a view of the embodiment shown in Fig. 2 is shown; With
Fig. 5 is according to embodiments more as herein described, and the process flow diagram of the process of the amount of liquid in wireless measurement casing is shown.
Embodiment
This document describes the technology for the amount of liquid in wireless measurement casing.As briefly described above, electromagnetic wave is used can be stored in fuel in the fuel tank of aircraft by wireless measurement.By this way, can extend in described fuel tank without wire, thus eliminate lightning flow to into fuel tank risk and improve integrated airplane security.
In general, present disclose provides by measuring the technology corresponding to the electromagnetic transport function calculating amount of liquid received in conductive chassis.According to each embodiment, one or more incident electromagnetic wave is launched towards air/liquid border.When incident electromagnetic wave and described air/liquid border interact, due to the impedance mismatching at described air/liquid boundary, described incident electromagnetic wave can be conveyed through and/or reflect and leave described air/liquid border.In this sense, described incident electromagnetic wave splits into its reflection and transmission component.These reflections and transmission component are also electromagnetic waves, and then this may reflect the wall leaving described conductive chassis.When incident and/or component electromagnetic ripple and border interact, no matter be air/liquid, air/wall or liquid/wall, described electromagnetic wave all experienced by corresponding phase shift.Some but the incident electromagnetic wave of not every original transmission arrive receiver, and the component waves corresponding to described incident electromagnetic wave at receiver place is coherently added.Due to the respective phase-shifted of described component waves, as mentioned above, depend on electromagnetic frequency and conductive chassis and be stored in the geometric configuration of the liquid in conductive chassis, obtain unique response at described receiver place.
The uniqueness response obtained at described receiver antenna place can be expressed as transport function, and this derives from the relevant summation of described component waves.Transport function depends on geometric configuration to a great extent.Air/liquid border in described conductive chassis is used as continually varying border, and this can affect described transport function.Change in described transport function indicates the change of described air/liquid boundary position, and this is the change of amount of liquid in essence.Therefore, by measuring the change in described transport function, the amount of liquid be stored in described conductive chassis can be calculated.
According to some embodiments, incident electromagnetic wave may be launched by towards described air/liquid border with some discrete frequencies in concrete bandwidth.Described incident electromagnetic wave may be disperseed when interacting with described air/liquid border, thus produces corresponding reflection and transmission component waves.The component waves disperseed may finally be received by receiver and coherently increase, thus causes the measurement of transport function.It should be understood that the geometric configuration according to described air/liquid border, the feature of described component waves may change.Therefore, along with the geometric configuration on described air/liquid border changes, the feature of described component waves changes, and when coherently being increased with the described component waves of box lunch, can obtain the transport function concerning described air/liquid border being unique geometry in particular.By this way, by measuring described transport function, described amount of liquid can be calculated.
In alternative embodiments, incident electromagnetic wave can be launched towards described air/liquid border, and after a time delay, can receive the key reflections electromagnetic wave corresponding to described incident electromagnetic wave.This time delay corresponds to described incident electromagnetic wave and described air/liquid border interacts and produces the time needed for key reflections electromagnetic wave received at receiver place.Described time delay is affected at transmitting incident electromagnetic wave and the distance received between the transceiver of corresponding reflecting component ripple and the surface of described liquid.Frequency of utilization or time domain reflectometry, measure transport function, and this transport function corresponds to by the time delay between the incident electromagnetic wave of Transceiver Transmit and the reflecting component ripple received.By measuring described time delay, the amount of the liquid be stored in casing can be calculated.
In describing in detail below, with reference to accompanying drawing, described accompanying drawing forms the present invention's part and by the mode illustrated, specific embodiment or example is shown.With reference now to accompanying drawing (wherein in described several accompanying drawing, identical label represents identical element), the technology according to the amount of liquid in each embodiment wireless measurement casing will be described.
Fig. 1 is according to embodiments more as herein described, and the schematic diagram of a kind of embodiment of the amount of liquid in wireless measurement casing is shown.Particularly, Fig. 1 illustrates the cavity environment 100 of the conductive chassis 110 comprising storage of liquids 112.Described conductive chassis 110 is made up of the material of conduction electro-magnetic wave.By this way, the surface rebound of the electromagnetic wave in described conductive chassis from described conductive chassis is transmitted.The example of this material includes, but not limited to metal and carbon fiber reinforced plastics (CFRP).According to a kind of embodiment, conductive chassis 110 is the aircraft fuel tanks being configured fuel-in-storage.It should be understood that the residual volume/volume of conductive chassis 110 may be occupied by air 114.In addition, air/liquid border 116 may be present in the surface of the liquid 112 being exposed to air 114.
According to each embodiment, cavity environment 100 can comprise inquiry assembly 120, and this inquiry assembly 120 can be configured continuously or determine the amount of the liquid be stored in conductive chassis 110 termly.According to each embodiment, inquiry assembly 120 can comprise wireless launcher 130, wireless receiver 140, inquiry module 122, transport function module 124, amount of liquid computing module 126 and wireless antenna 128.According to each embodiment, inquiry assembly 120 can be arranged in conductive chassis 110, or the outside of conductive chassis 110.In certain embodiments, only have transmitter 130, wireless receiver 140 and wireless antenna 128 can be arranged in conductive chassis 110, and one or more of inquiring in module 122, transport function module 124 and amount of liquid computing module 126 can be arranged on the outside of conductive chassis 110.By this way, the process likely occurring the amount of liquid determining to calculate can be performed by computing machine, and this computing machine can long-range setting but be communicated with wireless launcher 130 and wireless receiver 140 by wireless antenna 128.But as shown in fig. 1, all parts of inquiry assembly 120 can be arranged in conductive chassis 110.
In each embodiment, inquiry assembly 120 can be configured the amount determining the liquid be stored in conductive chassis 110 continuously, or, be configured the amount determining the liquid be stored in conductive chassis 110 upon receiving a request.In certain embodiments, inquire that assembly 120 receives request by wireless antenna 128.Under any circumstance, when inquiring that assembly 120 will determine the amount of the liquid be stored in conductive chassis 110, inquiry assembly 122 can be configured and emit a control signal to transmitter 130, to be transmitted in the incident electromagnetic wave in described conductive chassis.
Transmitter 130 can be configured to be launched and air/liquid border 116 and the interactional incident electromagnetic wave of conductive chassis 110.According to some embodiments, inquiry module 122 can cause transmitter 130 to launch incident electromagnetic wave with some discrete frequencies in specific bandwidth towards air/liquid border 116.Alternately, inquiry module 122 can cause transmitter 130 to launch multiple identical incident electromagnetic wave towards the air/liquid border 116 with identical wave characteristic, establishes object for superfluous.
When interacting with described air/liquid border, incident electromagnetic wave 132 can be divided into reflecting component ripple, transmission component waves and refracted component ripple.According to the exemplary embodiment of shown in Fig. 1, incident electromagnetic wave 132 can be divided into reflecting component ripple 142A, transmission wave 142B, refraction wave 142C and reflection wave 142N and other ripples, is totally called as component waves 142.Incident electromagnetic wave 132 may create multiple combinations of component waves 142 with the interaction on air/liquid border 116, and this may finally lead to receiver 140.Receiver 140 can be configured and receives multiple component waves 142 and coherently they be added in receiver 140 place.It should be understood that reflection, transmission and refracted component electromagnetic wave 142 totally can be called as resilience electromagnetic wave 142 in this article.
According to each embodiment, incident electromagnetic wave 132 can have certain wave feature, as particular amplitude, frequency and phase place.Resilience electromagnetic wave 142 corresponding to incident electromagnetic wave 132 also has the corresponding wave characteristic that can change according to the amount of the liquid be stored in conductive chassis 110.This is because the liquid level of described liquid changes along with the change of amount of liquid.Along with amount of liquid changes, relative phase and the amplitude of all resilience electromagnetic waves 142 received by receiver 140 also change.Therefore, along with amount of liquid changes, the transport function recorded at receiver 140 place also changes, thus provides the unique transport function corresponding to the particular fluid scale of construction.
According to the enforcement shown in Fig. 1, receiver 140 can be configured the resilience electromagnetic wave 142 receiving and correspond to incident electromagnetic wave 132, and this incident electromagnetic wave 132 is directed toward receiver 140.Then, provide resilience electromagnetic wave 142 to transport function module 124.Transport function module 124 can receive the multiple resilience electromagnetic waves 142 from receiver 140.Transport function module 124 can through further allocating and measuring transport function, and this may be unique/unique for the particular fluid scale of construction.
It should be understood that resilience electromagnetic wave 142 may change according to the geometric configuration of conductive chassis 110.Particularly, in the different liquids degree of depth, air/liquid border 116 can cause incident electromagnetic wave 132 differently launch and/or reflect.Therefore, the change along with liquid depth changes by the feature of resilience electromagnetic wave 142.By this way, the resilience electromagnetic wave 142 received by receiver 142 will have the feature of liquid body effect of depth.
As mentioned above, transport function module 124 measures transport function by coherently adding component electromagnetic wave 142A and 142B.In certain embodiments, transport function 124 can be configured the power distribution that structure represents the reception of the electromagnetic relevant summation of resilience.The power distribution received can be built within the scope of certain frequency, is launched in conductive chassis 110 at this frequency range place incident electromagnetic wave 132.Transport function module 124 can be then interrelated received power distribution and corresponding transport function, then this measured by transport function module 124.According to each embodiment, described transport function can record in described frequency or time domain.After the described transport function of measurement, transport function module 124 provides measured transport function to amount of liquid computing module 126, and then the phase calculates described amount of liquid according to measured transport function.
According to each embodiment, amount of liquid computing module 126 calculates amount of liquid by utilizing one group of data point (as the known time delay that one group of previously passed calibration process is determined) from measured transport function.In described calibration process, incident electromagnetic wave (as having the incident electromagnetic wave 132 of certain wave feature) is launched, and the corresponding transport function recorded at receiver 140 place is recorded for first liquid amount.For different liquids amount, repeat described calibration process, until a large group data point is determined certain limit amount of liquid.
In addition, due to the various factors of described transport function may be affected, multiple incident electromagnetic wave 132 can be launched at each amount of liquid place.By this way, the data point inconsistent with major part can be ignored.Once cavity environment 100 is calibrated in amount of liquid level on a large scale, described calibration data is stored and can be used for amount of liquid computing module 126.Therefore, in operation, by relatively more measured transport function and one group of amount of liquid level of calibrating, the actual liquid amount of conductive chassis 110 can be calculated.In the transport function coupling determining to record at receiver 140 place or after being similar to one that corresponds in one group of calibrated amount of liquid level, determine the amount of liquid corresponding to mated transport function.
Cavity environment 100 also can comprise induction power and data package 160, and this can be configured the electric power of wireless receiving from conductive chassis outside.According to each embodiment, induction power and data package 160 can be configured wirelessly provides electric power and data-signal to inquiry assembly 120.In some implementations, the wireless antenna 128 of described inquiry assembly can be configured wireless communications induction power and data package 160.According to each embodiment, described data-signal can comprise the request of the amount of liquid of wireless measurement conductive chassis 110.Relative to Fig. 3 and Fig. 4, the additional detail about induction power and data package will be provided here.
With reference now to Fig. 2, show the schematic diagram of another embodiment of the amount of liquid illustrated in wireless measurement casing.Especially, Fig. 2 shows slotted waveguide environment 200, and this environment has the configuration being similar to cavity environment 100.Slotted waveguide environment 200 can comprise conductive chassis 110, and this conductive chassis 110 can comprise liquid 112.The space that described liquid does not occupy can be occupied by air 114.In addition, air/liquid border 116 can be present in the surface of the liquid 112 being exposed to air 114.
Be different from cavity environment 100, slotted waveguide environment 200 can comprise slotted waveguide 250.Waveguide can be any structure being configured guide electromagnetic waves.The example of waveguide can be hollow metal tube.Slotted waveguide is a kind of waveguide, and it is provided with one or more groove, and when being placed in casing (as conductive chassis 110) with the described slotted waveguide of box lunch, the liquid be stored in described casing can enter described slotted waveguide.In enforcement in fig. 2, slotted waveguide 250 is configured and allows liquid 112 enter slotted waveguide 250 and have the liquid depth level of the liquid depth level of the liquid equaled around slotted waveguide 250.
Be similar to cavity environment 100, slotted waveguide environment 200 also can comprise the inquiry assembly 220 being similar to inquiry assembly 120.Inquiry assembly 220 also can comprise inquiry module 222, and this inquiry module class is similar to inquiry module 122 and operates.Inquiry assembly 220 can cause transceiver 240 to launch incident electromagnetic wave 242 towards air/liquid border 116.Transceiver 240 can receive the resilience electromagnetic wave 244 corresponding to incident electromagnetic wave 242.
In addition, inquiry assembly 220 also can comprise transport function module 224, and this transport function module is configured to be determined to correspond to received electromagnetic transport function.Along with liquid depth level changes, the distance between transceiver 240 and air/liquid border 116 also changes.Therefore, described amount of liquid can by determining that corresponding to incident electromagnetic wave 242 transmitting leaves described air/liquid border and the transport function calculating being received required traveling time by transceiver 240.According to each embodiment, described traveling time can be expressed as transport function, and can correspond to the specific range between transceiver 240 and air/liquid border 116.After determining the distance between transceiver 240 and air/liquid border 116, described amount of liquid can be calculated.
In order to determine described amount of liquid from described traveling time, slotted waveguide environment 200 can be calibrated.In described calibration process, incident electromagnetic wave (such as, incident electromagnetic wave 242 as resilience electromagnetic wave 244 transmits and receives) traveling time can be determined one and organized fluid level greatly, the scope of described one group fluid level is greatly from corresponding to the fluid level of empty van to the fluid level corresponding to trunkful.
Once slotted waveguide environment 200 is calibrated in amount of liquid on a large scale, the actual liquid amount of conductive chassis 110 is just determined by relatively more measured transport function and the one group of amount of liquid calibrated.In the transport function coupling determining to record at receiver 140 place or when being similar to the transport function corresponding to one group of calibrated amount of liquid, calculate the amount of liquid of the known transport function corresponding to coupling.
According to some embodiments, in slotted waveguide as described in reflective float 230 (as metal floater) can be placed in, so that reflective float 230 floats on air/liquid border 116.By providing reflecting surface (wherein incident electromagnetic wave 242 can get back to transceiver 240 from this reflective surface reflects), increase the electromagnetic intensity reflecting back into transceiver 240, reflective float 230 can be configured the sensitivity increasing described slotted waveguide environment simultaneously.
In addition, slotted waveguide environment 200 also can comprise induction power and data package 160.As described above, induction power and data package 160 can be configured wirelessly provides electric power and data-signal to inquiry assembly 230.
Fig. 3 is according to embodiments more as herein described, and the schematic diagram of Wireless power transmission to the embodiment of in casing is shown.Especially, Fig. 3 shows induction power and data package 160, and described induction power and data package 160 are configured wireless transmission from the electric power of conductive chassis 110 outside and data in conductive chassis 110.
Induction power and data package 160 can comprise the outer inductive coil 312A of the outer wall 302 of the conductive chassis 110 that can be connected to part and can be connected to the inner inductive coil 314A of inwall 304 of conductive chassis 110 of part.The conductive chassis 110 of described part can be conductive barrier 310, as metal, CFRP or a kind of material being configured conduction electro-magnetic wave.It should be understood that the impact that metal conduction barrier can be used to reduce vortex flow to greatest extent, described vortex flow adversely may affect the transmission of electromagnetic field through described surface.Inductively can be coupled described outer inductive coil 312A and inner inductive coil 314A, to be supplied to the electric power of outer inductive coil 312A by wire 316 and data can be sensed through inner inductive coil 314A by conductive barrier 310.It should be understood that induction power and data-signal can be sensed with low frequency.By selecting lower operating frequency (frequency as within the scope of lower MHz), can by conductive barrier 310 transferring electric power and data-signal to inner inductive coil 314A.
Wireless hub 320A can be coupled to the inner inductive coil 314A inside conductive chassis 110.Wireless hub 320A can comprise electron device 322A, and this electron device 322A comprises for rectification and the rectification circuit storing described induction power.In addition, under electron device 322A can comprise-upconverter, this downwards-upconverter can be configured and convert the low frequency induced signal at inner inductive coil 314A place to upper frequency radio frequency (RF) microwave.Upper converts low frequency rate induced signal becomes a reason of upper frequency RF carrier signal may be propagate described electric power and data-signal to various parts, as the inquiry assembly 220 in conductive chassis 110.
With reference now to Fig. 4, there has been described the skeleton view of a view of the embodiment shown in key diagram 2.Especially, cordless liquid system for measuring quantity 400 can comprise the conductive chassis 410 being similar to conductive chassis 110.According to each embodiment, cordless liquid system for measuring quantity 400 can comprise multiple fluting inquiry assembly 220A, 220N of being wirelessly communicated with induction power and data package 320A, 320N (being totally called as induction power and data package 320 here) respectively.Each induction power and data package 320 can comprise a pair inductive coil inductively.Described a pair inductive coil inductively can comprise outer inductive coil, as being connected to outer inductive coil 312A, 312N of the outer wall of conductive chassis 410.In addition, described a pair inductive coil inductively also can comprise inner inductive coil, as inner inductive coil 314A, the 314N of the inwall of conductive chassis 410 can be connected to, in this way, outer inductive coil 312A, 312N are inductively coupled to inner inductive coil 314A, 314N respectively.By this way, when not using any wire extended in conductive chassis 410, electric power and data-signal can be outside from conductive chassis 410 internal transmission to conductive chassis 410, and vice versa.
In addition, cordless liquid system for measuring quantity 400 also can comprise inquiry assembly 220A, 220N (being totally called inquiry assembly 220 here).Each inquiry assembly 220 can be configured the amount of liquid calculated in respective slotted waveguide 250, wherein inquires that assembly 220 is coupled to slotted waveguide 250 communicatively.As relative to Fig. 2 as described in above, inquiry assembly 220A can comprise transceiver 240, and this transmitter can be configured to be launched incident electromagnetic wave and receives the resilience electromagnetic wave corresponding to described incident electromagnetic wave towards the air/liquid border 116 in slotted waveguide 250.Inquiry assembly 220 can comprise inquiry module 222, and this inquiry module is configured and causes transceiver 240 to launch interrogating signal (incident electromagnetic wave as in slotted waveguide 250).Inquiry module 222 can through configuration further cause transceiver 240 receive described interrogating signal (as the electromagnetic wave that reflects) and measure and correspond to incoming electromagnetic wave reflection and leave air/liquid border 116 also can be received required traveling time transport function by transceiver 240.Once described receiver receives described resilience electromagnetic wave, the transport function module 224 of inquiry assembly 220 just can be measured and correspond to the electromagnetic transport function of received resilience.Once transport function module 224 measures described transport function, amount of liquid computing module 226 just by more described traveling time and one group of data point of calibrating, can calculate described amount of liquid according to measured transport function.Calculated by amount of liquid computing module 226 once described amount of liquid, inquiry assembly 220 just can transmitting RF data-signal to respective induction power and data package, the induction power of the amount of liquid data calculated as index gauge and data package 160.
As relative to Fig. 3 as described in above, induction power and data package 160 can comprise wireless hub (as wireless hub 320A), and described wireless hub can be configured and receive from inquiry assembly 220A the amount of liquid data calculated.In addition, the second wireless hub 320N can be configured another inquiry assembly being communicated with and comprising inquiry assembly 220N.In alternative embodiments, wireless hub 320A can be configured and be communicated with multiple inquiry assembly 220.After receiving the amount of liquid data calculated, wireless hub 320A can cause the previous-next converter of induction power and data package 160 to convert RF data-signal to low-frequency signals.Once RF data-signal converts low-frequency signals to, wireless hub 320A just can cause inner inductive coil 314A to transmit described low-frequency signals to outer inductive coil 312A, and the low-frequency signals comprising amount of liquid data can be transferred to amount of liquid Mersure Controler 450 from outer inductive coil 312A.
It should be understood that the function of inquiry assembly 220N may be identical with the function of inquiry assembly 220A.By attempting the amount of liquid of the multiple positions determined in conductive chassis 410, the more pin-point reading of described amount of liquid can be determined.This may be specially adapted to wherein liquid may not be in static application.Such as, conductive chassis 410 can be the fuel tank of aircraft.In flight course, fuel may move left and right the ripple (ripple) caused at fuel/air mixture boundary.In this case, the fuel quantity measuring the multiple positions in fuel tank can reduce the possibility of erroneous calculations fuel quantity.
In addition, amount of liquid Mersure Controler 450 can be configured the inquiry assembly 220 be communicated with in conductive chassis 410.Particularly, amount of liquid Mersure Controler 450 can be configured by the transmission of inductive coil (as inductive coil 312A, 312N, 314A, 314N) inductively from the electric power of conductive chassis 410 outside to the assembly in conductive chassis 410.In addition, amount of liquid Mersure Controler 450 also may can provide data-signal, and described data-signal can comprise the control signal that instruction calculates the request of amount of liquid.Cordless liquid Mersure Controler 450 may can launch independent electric power signal and/or control signal to ad hoc querying assembly 220.In addition, amount of liquid Mersure Controler 450 also can receive data-signal, and described data-signal comprises the amount of liquid data of the amount of the liquid in each described slotted waveguide 250 of instruction.It should be understood that, amount of liquid Mersure Controler 450 also can be implemented in the cordless liquid system for measuring quantity that can utilize air ambient 100, as relative to Fig. 1 as described in above, for measuring the amount of liquid in conductive chassis (as conductive chassis 110).In certain embodiments, amount of liquid Mersure Controler 450 can be communicated with amount of liquid measurement data and amount of liquid indication mechanism 460, and this amount of liquid indication mechanism can be responsible for the amount showing the liquid be stored in casing 410.In aircraft embodiment, amount of liquid indication mechanism 460 can be the fuel quantity indication mechanism of amount for calculating and show the fuel be stored in the fuel tank of aircraft.According to some embodiments, described fuel quantity indication mechanism can be in aircraft electrical equipment (EE) septal area.
Fig. 5 is according to some embodiments, and the process flow diagram of the process of the amount of liquid in wireless measurement casing is shown.It should be understood that logical operation as described herein can be performed by the calculation element of programming especially according to described embodiment and/or analog or digital circuit.Also it should be understood that and to compare with shown in the drawings with described here, more or less operation can be performed.
Routine 500 is to operate 502 beginnings, and in this operation, amount of liquid Mersure Controler 450 can send electric power and data-signal to outer inductive coil 312A.Described electric power and data-signal are transmitted into outer inductive coil 312A by wire 316.According to each embodiment, described electric power and data-signal can be low-frequency signals, so that described electric power and data-signal can be transmitted by conductive chassis 110.From operation 502, routine 500 proceeds to operation 504, and in this operation, described electric power and data-signal are transferred to inner inductive coil by described conductive barrier.Described conductive barrier can be the dividing plate of conductive chassis 110, and can by making any material of conduction electro-magnetic wave.Such as, conductive barrier 410 can be made up of metal or CFRP material.
From operation 504, routine 500 proceeds to operation 506, and in this operation, wireless hub 320A can convert responded to electric power and data-signal to upper frequency RF signal.According to each embodiment, the electric power responded to and data-signal are converted into microwave frequency.From operation 506, routine 500 proceeds to operation 508, and in this operation, wireless hub 320A transmits the upper frequency RF signal changed to inquiry assembly 220A.From 508, routine 500 proceeds to operation 510, and in this operation, inquiry assembly 220A receives the upper frequency RF signal be converted from wireless hub 320A.
From 510, routine 500 proceeds to operation 512, in this operation, response receives the upper frequency RF signal changed, and inquiry assembly 220 causes transceiver 240 to launch incident electromagnetic wave towards the air/liquid border 116 of the liquid 112 be included in slotted waveguide 250.According to each embodiment, slotted waveguide 250 can comprise the reflective float 230 being configured the sensitivity increasing reflection incident electromagnetic wave.From operation 512, routine 500 proceeds to operation 514, and in this operation, transceiver 240 receives the resilience electromagnetic wave corresponding to described incident electromagnetic wave.According to each embodiment, described resilience electromagnetic wave can comprise the electromagnetic wave of the multiple component reflections be coherently added at described transceiver place.In certain embodiments, transceiver 240 can be configured the electromagnetic wave receiving only simple component reflection.
From operation 514, routine 500 proceeds to operation 516, and in this operation, transport function module 224 measures the electromagnetic transport function of described resilience.According to each embodiment, the inquiry module 222 of inquiry assembly 220 can be configured measures described transport function.According to each embodiment, described transport function can be the traveling time that transceiver 240 receives needed for incident electromagnetic wave.Measured traveling time can correspond to the specific range between transceiver 240 and air/liquid border 116.From operation 516, routine 500 proceeds to operation 518, and in this operation, amount of liquid computing module 226 calculates described amount of liquid according to measured transport function.The transport function coupling determining to measure at transceiver 240 place or be similar to correspond to one group of calibrated amount of liquid transport function after, calculate and correspond to the amount of liquid of mated known transport function.In one embodiment, described transport function may correspond to and launch incident electromagnetic wave and receiving the time delay between the resilience electromagnetic wave corresponding to described incident electromagnetic wave.Once measure the transport function corresponding to described time delay, described amount of liquid just by more described transport function and can calculate corresponding to having the time delay known with a group of the incident electromagnetic wave of launched incident electromagnetic wave same characteristic features.
From operation 518, routine 500 proceeds to operation 520, and in this operation, the amount of liquid calculated is sent to described wireless hub by RF radio-frequency signal.From operation 520, routine 500 proceeds to operation 522, and in this operation, after receiving described amount of liquid data from inquiry assembly 220, wireless hub 320A sends described amount of liquid data to amount of liquid Mersure Controler 450.According to each embodiment, by transmission from the inner inductive coil by conductive barrier 410 to the low-frequency signals of described outer inductive coil, described amount of liquid data just can be sent to amount of liquid Mersure Controler 450.From operation 522, routine 500 is to operate 524 end.
The present invention relates to a kind of cordless liquid system for measuring quantity, comprising:
Inquiry assembly, this inquiry assembly comprises
Transmitter, it is configured launches one or more incident electromagnetic wave in the conductive chassis being configured storage of liquids,
Receiver, it is configured the resilience electromagnetic wave receiving and correspond to described incident electromagnetic wave,
Transport function module, it is configured to measure and corresponds to the electromagnetic transport function of described resilience, and
Amount of liquid computing module, it is configured and calculates amount of liquid according to measured transport function.
In said system, slotted waveguide can be placed in described conductive chassis; And wherein said transmitter can be configured at described one or more incident electromagnetic wave of slotted waveguide pipe pre-support.
In addition, reflective float can be configured the floating on top of the liquid in described slotted waveguide, and reflects described incident electromagnetic wave.
Described amount of liquid computing module can through further configuration thus:
Determine in the specific electromagnetic wave launching described incident electromagnetic wave and the time delay received between corresponding resilience electromagnetic wave,
More determined time delay and corresponding to having the time delay known with a group of the incident electromagnetic wave of described specific incident electromagnetic wave same characteristic features,
Determine whether described time delay mates described one group of known time delay, and
When determining a time delay in the described one group of known time delay of described time delay coupling, determine the amount of liquid corresponding to mated time delay.
System of the present invention also can comprise being configured launches electric power and data-signal to the induction power of described inquiry assembly and data package, and wherein said inquiry assembly comprises wireless antenna further, described wireless antenna is configured the first wireless signal of launching and comprising corresponding to the amount of liquid data of the amount of liquid calculated to described induction power and data package.
Described induction power and data package can comprise:
A pair inductive coil inductively, comprise the inner inductive coil and outer inductive coil of being separated by the described conductive chassis being configured conduction electro-magnetic wave, described inner inductive coil is connected to the inside surface of described conductive chassis and described outer inductive coil is connected to the outside surface of described conductive chassis.
Wireless hub, comprises
Under-upper frequency converter, it is configured and converts the low frequency induced signal received at described inner inductive coil place to upper frequency RF signal,
Previous-next frequency converter, it is configured and converts the upper frequency RF signal received from described inquiry assembly to low frequency induced signal, and
Second wireless antenna, it is configured the first wireless antenna by inquiring assembly described in described upper frequency RF signal communication.
The conductive chassis of said system can comprise carbon fiber reinforced plastics (CFRP).
On the one hand, in accompanying drawing and text, disclose a kind of method measuring amount of liquid, comprise: in conductive chassis 110, send one or more incident electromagnetic wave 132, receive the resilience electromagnetic wave 142 corresponding to described incident electromagnetic wave 132, measure the transport function corresponding to described resilience electromagnetic wave 142, and calculate amount of liquid according to measured transport function.
Advantageously, the method can comprise wherein in conductive chassis 110 send described one or more incident electromagnetic wave 132 comprise towards the liquid be stored in conductive chassis 110 surface send described one or more incident electromagnetic wave 132.Advantageously, the method can comprise wherein incident electromagnetic wave 132 and is sent out towards the reflective float 230 on the surface swimming in the liquid be stored in casing 110.Advantageously, the method can comprise wherein reception resilience electromagnetic wave 142 and comprise the reflection electromagnetic wave receiving the reflection being incident electromagnetic wave 132.Advantageously, the method can comprise and wherein comprising according to measured transport function calculating amount of liquid: determine in the specific incident electromagnetic wave sending incident electromagnetic wave 132 and the time delay received between corresponding resilience electromagnetic wave 142, more described time delay and corresponding to having the time delay known with a group of the incident electromagnetic wave 132 of specific incident electromagnetic wave 132 same characteristic features, determine whether described time delay mates a time delay in described one group of known time delay, with after determining a time delay in the described one group of known time delay of described time delay coupling, determine the amount of liquid corresponding to mated time delay.
Advantageously, the method can comprise wherein incident electromagnetic wave 132 and send with some discrete frequencies in concrete bandwidth, and wherein measures the transport function corresponding to resilience electromagnetic wave 142 and comprise the power distribution that structure represents the reception of the relevant summation of resilience electromagnetic wave 142.Advantageously, the method can comprise further and sends the first radio frequency (RF) signal comprised corresponding to the amount of liquid data of the amount of liquid calculated and postpone described amount of liquid data to the wireless hub 320A of the amount of liquid Mersure Controler 450 in conductive chassis 110 outside to being configured, and the described amount of liquid data of delay are to amount of liquid Mersure Controler 450.
Advantageously, the method can comprise and wherein postpone described amount of liquid data and comprise to amount of liquid Mersure Controler 450: generate the amount of liquid signal comprising described amount of liquid data, transmit described amount of liquid signal to the inner inductive coil 314A of inside surface being connected to conductive chassis 110, send described amount of liquid signal to the outer inductive coil 312A being inductively couple to inner inductive coil 314A, with the amount of liquid signal being received in outer inductive coil 312A place, and transmit described amount of liquid signal to amount of liquid Mersure Controler 450.
On the one hand, disclosing a kind of system for measuring amount of liquid, comprising: inquiry assembly 120,220, it is configured the amount of liquid calculating the liquid be stored in conductive chassis 110; With induction power and data package 160,320, it is configured and wirelessly supplies electric power and data-signal to inquiring assembly 120,220, described induction power and data package 160,320 comprise the inductive coil inductively of inner inductive coil 314A and the outer inductive coil 312A comprising for a pair and separated by the conductive chassis 110 that can conduct magnetic wave, and described inner inductive coil 314A is connected to the outside surface that the inside surface of conductive chassis 110 and outer inductive coil 312A are connected to conductive chassis 110.
Advantageously, this system can comprise wherein inquires that assembly 120,220 comprises: transmitter, and it is configured and sends one or more electromagnetic wave 132 in the conductive chassis 110 being configured storage of liquids; Receiver, it is configured the resilience electromagnetic wave 142 receiving and correspond to incident electromagnetic wave (132); Transport function module, it is configured the transport function measured and correspond to resilience electromagnetic wave (142); With amount of liquid computing module (126), it is configured and calculates amount of liquid according to measured transport function.
Advantageously, this system can comprise wherein liquid computing module 126 and determine in the specific incident electromagnetic wave 132 sending incident electromagnetic wave 132 and the time delay received between corresponding resilience electromagnetic wave 142 through configuring further, more determined time delay and corresponding to having the time delay known with a group of the incident electromagnetic wave 132 of described specific incident electromagnetic wave same characteristic features, with when determining a time delay in the described one group of known time delay of determined time delay coupling, determine the amount of liquid corresponding to mated time delay.
Advantageously, this system can comprise wherein induction power and data package 160,320 and comprise the wireless hub 320A being configured wireless communications inquiry assembly 120,220 further, and wherein inquire that assembly 120,220 comprises wireless antenna 128,228 for being communicated with wireless hub further, described inquiry assembly 120,220 is configured and sends data corresponding to the amount of liquid calculated to wireless hub 320A by wireless antenna 128,228.
Advantageously, this system can comprise the slotted waveguide 250 be placed in conductive chassis 110 further, and wherein said transmitter is configured towards the liquid transmission incident electromagnetic wave 132 in slotted waveguide 250.
Above-mentioned theme provides by means of only the mode illustrated, and should not be interpreted as restriction.When not following illustrated and described exemplary embodiment and application, and when the true spirit that the present invention do not deviated from is illustrated by claims and scope, various amendment and change can be made to theme described herein.
Claims (18)
1. measure a method for amount of liquid, comprising:
One or more incident electromagnetic wave (132) is launched by transmitter in conductive chassis (110);
Receive the resilience electromagnetic wave (142) corresponding to described incident electromagnetic wave (132);
Measure the transport function corresponding to described resilience electromagnetic wave (142); And
In the following manner according to measured transport function, calculate amount of liquid:
Determine in the specific incident electromagnetic wave (132) launching described incident electromagnetic wave and the time delay received between corresponding resilience electromagnetic wave (142);
Described time delay and one group of known time delay are compared, described one group of known time delay corresponds to the incident electromagnetic wave (132) with described specific incident electromagnetic wave (132) with same characteristic features;
Determine that whether described time delay mates with a time delay in described one group of known time delay; With
After determining a time delay in the described one group of known time delay of described time delay coupling, determine the amount of liquid corresponding to mated time delay.
2. method according to claim 1, wherein launches described one or more incident electromagnetic wave (132) and comprises towards one or more incident electromagnetic wave (132) described in the surface emitting of the liquid be stored in described conductive chassis (110) in described conductive chassis (110).
3. method according to claim 1, wherein said incident electromagnetic wave (132) is launched by towards at the reflective float (230) of the floating on top being stored in the liquid in described conductive chassis (110).
4. method according to claim 1, wherein receive resilience electromagnetic wave (142) and comprise and receiving by the electromagnetic wave reflected, described is the reflection of described incident electromagnetic wave (132) by the electromagnetic wave reflected.
5. method according to claim 1, wherein said incident electromagnetic wave (132) is launched with some discrete frequencies in concrete bandwidth; With
Wherein measure the power distribution that the transport function corresponding to described resilience electromagnetic wave (142) comprises the reception of the relevant summation of structure expression resilience electromagnetic wave (142).
6. method according to claim 1, comprises further:
Launch the first radio frequency signals of comprising corresponding to the amount of liquid data of the amount of liquid calculated to wireless hub (320A), this wireless hub is configured to pass on described amount of liquid data to the amount of liquid Mersure Controler (450) outside described conductive chassis (110); With
Pass on described amount of liquid data to described amount of liquid Mersure Controler (450).
7. method according to claim 6, described amount of liquid data of wherein passing on comprising to described amount of liquid Mersure Controler (450):
Generate the amount of liquid signal comprising described amount of liquid data;
Transmit described amount of liquid signal to inner inductive coil (314A), this inner inductive coil is connected to the inside surface of described conductive chassis (110);
Launch described amount of liquid signal to outer inductive coil (312A), this outer inductive coil (312A) is inductively couple to described inner inductive coil (314A); With
Described amount of liquid signal is received at described outer inductive coil (312A) place; With
Transmit described amount of liquid signal to described amount of liquid Mersure Controler (450).
8. a cordless liquid system for measuring quantity, it comprises:
Inquiry assembly, this inquiry assembly comprises:
Transmitter, it is configured in the conductive chassis being configured to storage of liquids, launch one or more incident electromagnetic wave,
Receiver, it is configured to receive the resilience electromagnetic wave corresponding to described incident electromagnetic wave,
Transport function module, it is configured to measure and corresponds to the electromagnetic transport function of described resilience, and
Amount of liquid computing module, it is configured to calculate amount of liquid according to measured transport function; And
Be placed in the slotted waveguide in described conductive chassis; And wherein said transmitter is configured to one or more incident electromagnetic wave described in described slotted waveguide pipe pre-support.
9. cordless liquid system for measuring quantity according to claim 8, comprises further and to be configured to swim on the liquid surface in described slotted waveguide and to reflect the reflective float of described incident electromagnetic wave.
10. cordless liquid system for measuring quantity according to claim 8, wherein said amount of liquid computing module is configured to further:
Determine in the specific incident electromagnetic wave launching described incident electromagnetic wave and the time delay received between corresponding resilience electromagnetic wave;
Determined time delay and one group of known time delay are compared, described one group of known time delay corresponds to the incident electromagnetic wave with described specific incident electromagnetic wave with same characteristic features;
Determine that whether described time delay mates with a time delay in described one group of known time delay; With
After determining a time delay in the described one group of known time delay of described time delay coupling, determine the amount of liquid corresponding to mated time delay.
11. cordless liquid system for measuring quantity according to claim 8, comprise further and be configured to launch electric power and data-signal to the induction power of described inquiry assembly and data package, and wherein said inquiry assembly comprises further and being configured to the first wireless signal transmission of comprising the amount of liquid data corresponding to calculated amount of liquid wireless antenna to described induction power and data package.
12. cordless liquid system for measuring quantity according to claim 11, wherein said induction power and data package comprise:
A pair inductive coil inductively, described a pair inductive coil inductively comprises the inner inductive coil and outer inductive coil of being separated by the conductive chassis being configured to conduction electro-magnetic wave, and described inner inductive coil is connected to the inside surface of described conductive chassis and described outer inductive coil is connected to the outside surface of described conductive chassis; And
Wireless hub, it comprises:
Under-upper frequency converter, it is configured to convert the lower frequency induced signal received in described inner inductive coil to upper frequency RF signal,
Previous-next frequency converter, it is configured to convert the upper frequency RF signal received from described inquiry assembly to lower frequency induced signal, and
Second wireless antenna, it is configured to be communicated with the first wireless antenna of described inquiry assembly by described upper frequency RF signal.
13. cordless liquid system for measuring quantity according to claim 8, wherein said conductive chassis comprises carbon fiber reinforced plastics and CFRP.
14. 1 kinds of systems measuring amount of liquid, comprising:
Conductive chassis;
Inquiry assembly (120,220), it to be arranged in described conductive chassis and to calculate the amount of liquid of the liquid be stored in described conductive chassis (110); With
Induction power and data package (160, 320), it is configured to wireless supply electric power to described inquiry assembly makes data-signal at described inquiry assembly (120, 220) with between described induction power and data package communicate, described induction power and data package (160, 320) a pair inductive coil is inductively comprised, described a pair inductive coil inductively comprises by can the conductive chassis (110) of the conduction electro-magnetic wave inner inductive coil (314A) of separating and outer inductive coil (312A), described inner inductive coil (314A) is connected to the inside surface of described conductive chassis (110) and described outer inductive coil (312A) is connected to the outside surface of described conductive chassis (110),
The amount of liquid being wherein stored in the calculating of the liquid in described conductive chassis by described data-signal at described inquiry assembly with wirelessly communicated between described induction power and data package.
15. systems according to claim 14, wherein said inquiry assembly (120,220) comprising:
Transmitter, it is configured to launch one or more incident electromagnetic wave (132) in the described conductive chassis (110) being configured to storage of liquids,
Receiver, it is configured to receive the resilience electromagnetic wave (142) corresponding to described incident electromagnetic wave (132),
Transport function module, it is configured to measure the transport function corresponding to described resilience electromagnetic wave (142), and
Amount of liquid computing module (126), it is configured to calculate amount of liquid according to measured transport function.
16. systems according to claim 15, wherein said amount of liquid computing module (126) is further configured to:
Determine in the specific incident electromagnetic wave (132) launching described incident electromagnetic wave (132) and the time delay received between corresponding resilience electromagnetic wave (142);
Determined time delay and one group of known time delay are compared, described one group of known time delay corresponds to the incident electromagnetic wave (132) with described specific incident electromagnetic wave with same characteristic features;
Determine whether determined time delay mates a time delay in described one group of known time delay; With
After determining a time delay in the described one group of known time delay of determined time delay coupling, determine the amount of liquid of the time delay corresponding to coupling.
17. systems according to claim 14, wherein said induction power and data package (160,320) comprise wireless hub (320A) further, and this wireless hub (320A) is configured to and described inquiry assembly (120,220) radio communication; And
Wherein said inquiry assembly (120,220) comprises the wireless antenna (128,228) for communicating with wireless hub further, and described inquiry assembly (120,220) is configured to be sent corresponding to the data of the amount of liquid calculated to described wireless hub (320A) by described wireless antenna (128,228).
18. systems according to claim 15, comprise the slotted waveguide (250) be placed in described conductive chassis (110) further; And wherein said transmitter is configured to towards incident electromagnetic wave (132) described in the liquid propellant in described slotted waveguide (250).
Applications Claiming Priority (3)
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| US12/970,664 | 2010-12-16 | ||
| US12/970,664 US8510065B2 (en) | 2010-12-16 | 2010-12-16 | Wireless liquid quantity measurement system |
| PCT/US2011/061078 WO2012082296A2 (en) | 2010-12-16 | 2011-11-16 | Wireless liquid quantity measurement system |
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| CN103261853A CN103261853A (en) | 2013-08-21 |
| CN103261853B true CN103261853B (en) | 2015-09-09 |
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| EP (1) | EP2652464B1 (en) |
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- 2011-11-16 JP JP2013544496A patent/JP5972280B2/en active Active
- 2011-11-16 CN CN201180060669.4A patent/CN103261853B/en active Active
- 2011-11-16 RU RU2013122945/28A patent/RU2585321C2/en active
- 2011-11-16 EP EP11794890.1A patent/EP2652464B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012082296A2 (en) | 2012-06-21 |
| RU2585321C2 (en) | 2016-05-27 |
| EP2652464B1 (en) | 2020-03-11 |
| WO2012082296A3 (en) | 2012-11-15 |
| JP5972280B2 (en) | 2016-08-17 |
| CN103261853A (en) | 2013-08-21 |
| EP2652464A2 (en) | 2013-10-23 |
| RU2013122945A (en) | 2015-01-27 |
| US8510065B2 (en) | 2013-08-13 |
| JP2014503815A (en) | 2014-02-13 |
| US20120158321A1 (en) | 2012-06-21 |
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